NPIMap

Individual provider Active NPI

Massimo Asolati, MD

  • Transplant Surgery Physician
  • Denver, CO
National Provider Identifier
1922060185
Registry record updated Oct 21, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Transplant Surgery PhysicianTaxonomy code 204F00000X
License
DR.53997 Issued in CO
Practice address
2535 S Downing St Ste 380
Denver, CO 80210-5850
Phone
(303) 778-5797
Fax
(303) 778-5205
NPI assigned
Apr 4, 2006
Last updated
Oct 21, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 21, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Surgery Physician 208600000X 53997 CO
Transplant Surgery Physician 204F00000X DR.53997 CO Primary

Addresses

Primary practice location

2535 S Downing St Ste 380
Denver, CO 80210-5850

Mailing address

PO Box 300369
Denver, CO 80203-0369
Phone (303) 957-1310

Other practice location 1

990 E Harvard Ave
Denver, CO 80210-7008
Phone (303) 777-7112

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address massimo.asolati@surgone.directbygreenway.com Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CO
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20140724001050 CO Practitioner - General Surgery 0446220941 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
General Surgery
Education
Other, 1983
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Surgone PCGroup PAC ID 9032002985, 39 clinicians

Practice addresses (Care Compare)

2525 S Downing St
Denver, CO 80210-5817

2535 D S Downing St
Suite 460
Denver, CO 80210-5817
Phone (303) 744-1065

2535 S Downing St
Denver, CO 80210-5850
Phone (303) 778-5797

2535 S Downing St
400 Surgone Porter Office
Denver, CO 80210-5851
Phone (303) 788-8989

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of tissue107
Skin biopsy1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
DR.53997COMDTransplant Surgery Physician
53997COMDSurgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Surgone, PC Transplant Surgery Current Accepting new patients
Traumaone, PLLC CurrentSince Dec 1, 2024 Accepting new patients
Portercare Adventist Health System CurrentSince Jan 2, 2025 Accepting new patients
Portercare Adventist Health System Current Accepting new patients
Surgone, PC Surgery CurrentSince Aug 1, 2014 Accepting new patients
Surgone, PC Surgery CurrentSince Aug 1, 2014 Accepting new patients
Portercare Adventist Health System CurrentSince Jan 2, 2025 Accepting new patients
Portercare Adventist Health System Past Accepting new patients

Locations

2350 Meadows Blvd
Castle Rock, CO 80109
Phone (720) 248-3413

1601 E 19th Ave
Ste 4600
Denver, CO 80218
Phone (303) 260-5092

1601 E 19th Ave
Ste 5500
Denver, CO 80218
Phone (303) 260-5092

1601 E 19th Ave
Ste 6300
Denver, CO 80218
Phone (303) 839-5669

2525 S Downing St
Denver, CO 80210
Phone (303) 744-2706

2535 S Downing St
Ste 380
Denver, CO 80210
Phone (303) 260-2740

2535 S Downing St
Ste 400
Denver, CO 80210
Phone (303) 788-8989

990 E Harvard Ave
Denver, CO 80210
Phone (303) 777-7112

3333 S Bannock St
Ste 350
Englewood, CO 80110
Phone (303) 957-1310

8490 E Crescent Pkwy
Ste 380
Greenwood Village, CO 80111
Phone (303) 957-1310

7750 S Broadway
Ste 260
Littleton, CO 80122
Phone (303) 734-8650

10103 Ridgegate Pkwy
Ste 217
Lone Tree, CO 80124
Phone (303) 789-1877

900 Hope Way
Forest City, FL 32714
Phone (407) 357-1255

Interoperability endpoints

  • Direct secure messaging: massimo.asolati@surgone.directbygreenway.com

Organizations & group practices 8

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 28

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 28

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1144108800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1792540800000",
    "number": "1922060185",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 300369",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802030369",
            "telephone_number": "303-957-1310",
            "fax_number": "303-761-4252"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2535 S DOWNING ST STE 380",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802105850",
            "telephone_number": "303-778-5797",
            "fax_number": "303-778-5205"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "990 E Harvard Ave",
            "address_purpose": "LOCATION",
            "city": "Denver",
            "state": "CO",
            "postal_code": "802107008",
            "country_code": "US",
            "telephone_number": "303-777-7112",
            "fax_number": "303-722-7010",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ASOLATI",
        "first_name": "MASSIMO",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-04",
        "last_updated": "2026-10-21",
        "certification_date": "2026-10-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CO",
            "license": "53997",
            "primary": false
        },
        {
            "code": "204F00000X",
            "taxonomy_group": "",
            "desc": "Transplant Surgery",
            "state": "CO",
            "license": "DR.53997",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "massimo.asolati@surgone.directbygreenway.com",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1601 E 19th Ave",
            "address_2": "Suite 5500",
            "city": "Denver",
            "state": "CO",
            "country_code": "US",
            "postal_code": "802181216",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Denver, CO

Sources for this page

Verify at the official NPI Registry.